People write what they know. That's why novels are often about writers. That's why operas are frequently about artists, musicians, etc. Musicals are often about the singing and dancing professions: Moulin Rouge, Phantom of the Opera, Chicago...

Anyway. Someone should write a tragic opera about a singer who suddenly loses her hearing in one ear. Not so much "loses" hearing but worse. She has her hearing altered in such a way that the world sounds distorted and dissonant. Sort of like the way they make robots sound in movies. It's a fate worse than deafness. She was normally quite the reticent one to begin with, but now her own voice is the most excruciating to listen to because it's closest to her inner ear.

"Diplacusis" I was able to google out yesterday.